The Professional Report is a quarterly magazine published by the Society of Industrial and Office Realtors (SIOR). Stay current with the latest commercial real estate news, helpful articles, and important updates. Gather expertise from industry leaders or easily share information with colleagues and clients. Access the latest news about SIOR members, associate members, and chapters. SIOR is the leading professional commercial and industrial real estate association. With members in 580 cities in 26 countries, SIOR represents today's most knowledgeable, experienced, and successful commercial real estate brokerage specialists.